Charge-forming device.



C. CORNEUUS.

CHARGE FORMING DEVICE.

APPLICATION man NOV-20.1914.

Patented Aug. 31', 1915.

nvmvron Uzcwles H. fivmehzw.

A TTORNEY CHARLES HEIIRY CORNELIUS, 0F REDWOOD CITY, CALIFORNIA.

CHARGE-FORMING DEVICE.

Specification of Letterslatent.

Patented Aug. 31, 1915.

Application filed November 20, 1914. Serial no. 873,230.

To all whom it may concern:

Be it known that I, CHARLns H. CoRNn- LIUs, residing at Redwood Cit in the county of Mateo and State of (Jaliforma, have invented certain new and useful Improvements in Charge-Formin Devices, of

sumption of the gasolene and oil as possible,-

and thereby increase the mileage per gallon of gasolene that may be obtained by the em loyment of theinvention.

n its general nature, the present invention comprises a connection between the air intake port of the carbureter of an inter-,

nal combustion engine, and the exhaust manifold of the same, whereby a part of the exhaust gases from the engine may be passed through the carbureter (with additional air) and back again into the explosion chambers of the engine, thus utilizing the unburned.

residue of the exhaust.

In its more subordinate nature, the invention comprises a duct open to atmosphere at one end and connected at its other end to the air intake port of the carbureter, a connection being made between such duct and the exhaust manifold whereby the exhaust gases will be delivered into the duct to mingle with the incoming air and pass through the carbureter where the mixture in enriched, to a sufficient degree by the fresh gasolene, to bring the mixture to the proper proportion to be ignited in the engine, the feed of the exhaust gases into the duct being governed by a check valve.

Another object of the invention is to convey the incoming air and exhaust gases through the carbureter via the air intake so that the hot exhaust gases will serve to vaporize the gasolene and thus insure a more thorough mixture before delivery into the intake manifold of the engine.

With other objects in view that will be clear to those skilled in the art, the invention also includes those novel detailsv of construction, combination and arrangement of parts, all of which will be first fully described, then be specifically pointed out in the appended claims, and illustrated in th accompanying drawing, in which:

Figure 1 is a side elevation of an internal;

combustion engine power plant with the invention applied. Fig. 2 is anenlarged central vertical longitudinal section and part elevation of a portion of the same. Fig. 3 is a central section of the valve.

In the accompanying drawing, in which like letters and numerals of reference indicate like parts in all of the figures, 1 is the engine, 2 the intake manifold, 3 the exhaust manifold and 4 the carbureter.

5 designates a check valve which has a chamber 6 whose outlet is connected by a connection 18 withan elbow 1,9 that is connected with a pipe 20 for a purpose presently explained. The valve mechanism 5 has a threaded bore 8 through which the valve 10 can be admitted and withdrawn, the bore 8 being plugged by a suitable plug 8.under normal conditions.- The valve 10 rests on a seat 9 and has its stem 12 guided in a guide bearing 11, the movement of the valve being limited by a check nut 13. 14 is a lateral opening into the valve casng which may be used as an air opening, if desired, and 16 is another opening into the valve casing below the valve 10, which is in communication with the exhaust manifold 3 through the connection 17.

15 is a butterfly valve that is adapted to be controlled by a-con'nection 28 that runs to the operators seat, or'other convenient location, and is designed to control the admission of air through the port or opening 14. The Tpipe 20 is connected with a T 21 and the 21 is connected by a connection 23 and elbow 24 with the pipe 25 Whose end 26 is designed to communicate with the air intakeport of the carburetor 4, it being understood that the construction of the engine, the carbureter, and the intake and exhaust Inanifolds is of the ordinary type, and per 86, form no part of the present invention.

27 designates the .needle valve of the carbureter.'

In practice, the suction of the engine draws air in through the port 14 of the valve mechanism 5 via the duct to the intake of the carbureter, the duct including the eletion 17 and port 16 into the valve and be exhaust gaseswill flow through the connecdrawn through the intake of the carbureter and delivered to the cylinders via the intake manifold 2. Bymanipulating the but-, terfly' valve 15, the flow of the exhaust gases and air through the carbureter can be controlled. Furthermore the hot gases from the exhaust manifold will serve to effect a more perfect vaporization of the gasolene in the carbureter as the air current.

passes through, it being understood, of'

course, that the carbureter 'isadjusted to permit the exhaust gases-to be enriched to a sufficient degree to render it explosive in the engine cylinders when mixed with air. The T 21-has its third connection usually plugged as at 22 but if desired, the-plug 22 may be removed and the T 21 used as an additional airintake. Furthermore while I have shown the valvel5'located in the opening 14.

of the valve mechanism 5, I desire it understood that it may be located at any suitable place in the connectionwith the carbureter, 25

as for instance, in-the T21, so long as it will function to control the admission of the exhaust gases to the calibiireten If desired, suitable fire screens-'29 maybe provided in the passage betweenathe exhaust manifold and the intake of the carbureter at suitable-- J intervals to prevent firing from the exhaust gases through the- 'carbureter and these screens also serve, when locatedjn the main duct, as mixing screens. While I have referred to the use of these screens I desire it understood that they are not indispensable. What I claim is: 1.. The combination with the intake manifold, the carbureter and the exhaustmanifold of an internal combustion engine; of a duct between the exhaust .manifold and the airlintake port of the carbureter and a back check valve'finsaid duct and a valve congrolled means for admitting air into said uct.

The combination with theintake manifold, the carbureter and the exhaust mani fold of an internal combustion engine; of a; duct between the exhaust manifold and the air intake port of the carbureter, a back check valve in said duct,.and means for ,ad-. mitting air into said duct. i

3. The combination with the intake manifold, the carbureter and the exhaust manifold of an internal combustion engine; of 'a duct between the exhaust manifold and the air intake port of the carburetor, a back check-valve in said duct, means for admitting air into said-duct, and means for conadmitted directly into the duct.

trolling the-flow of air and exhaust gases through said duct to the carbureter.

4. The combination with the exhaust manifold, the intake manifold and the carbureter of an internal combustion engine; of a valve mechanism comprising a valve casing having a. valve seat; a valve cooperating with said seat to control passage through said casing, said casing having an intake and'an'outlet, a connection between said intake and the exhaust manifold, a duct be.- tween said outlet and the air intake port of the carbureter, said valve mechanism having a second intake port, and a valve for controlling the passage of air through said second intake port. I

5. The combination with the exhaust manifold, the intake manifold and the carbureter of an internal combustion engine;

of a valve mechanism 'comprising a valve casing hav1nga valve seat; a valve cooperating with said seat tocontrol passage manifold, the intake manifold and the carbureter of aninternal. combustion engine; of a valve mechanism comprising a valve casing having a valve seat; a valve cooperating with said seat to control passage through-said casing, said casing having an intake and an outlet, a connection between said intake and the exhaust manifold, a duct between said outlet and the air intake port of the carbureter, said valve mechanism having a second intake-. port, means for controlling the quantiitvof exhaust] gases thatipass into the carbureter, said duct including means through which air may be 7..v The combination with the intake manifold, thecarbureter and the exhaust manifold of aminternal combustion engl. of a duct between the exhaust manifold and the air intake port of the carbureter, a back check valve in said duct, means for admittingair into said duct, and means for controlling the admission of air into. said duct.

CHARLES HENRY CORNELIUS. Witnesses: JMV. Swim,

JAS. T. 'OKnarn. 

